Did you know that Bill Gates sold his very first computer program at age 17, which was a time-tabling system for his high school, for $4,200? Or, the rumor that he once spent $421-million on a Microsoft project to protect the Windows market share against Linux? Those are just some of the interesting things you'll find after the jump.
Like Steve Ballmer, Bill Gates has restricted his wife and three children from using all Apple devices. His 66-thousand-square-foot mansion is nicknamed Xanadu 2.0, and features a 17-by-60-foot swimming pool with underground music system and a floor painted in a fossil motif.